Car-coupling



[No jlodel.)

B. M. wHITLoCK. UAB OUPLING.

No. 511,506. PtentedApr. 3, 1394.

g ZM'- Aomew.

NNNNNNNNNNNNNNNNNNNNNNNNNN v.

UNITED STATS PATENT FFICE.

BENJAMIN MORRIS WHTLOOK, lOF NEW YORK, Y., ASSIGNOR TO THE INTERSTATECOUPLER COMPANY, JOF JERSEY CITY, NEW JERSEY.

cAR-couPLINe.

SPECIFIOATION forming part of Letters Patent No. 517,506, dated April 3,1894. Application filed January 19, 1894. Serial No. 497,389. (Nomodel.)

To all whom it may concern Be it known that I, BENJAMIN MoRRis WHIT-LOCK, a citizen of ,the United States, resding `at New York, in thecounty of New York and State of New York, have invented certain new anduseful Improvements in Oar-Cou-plings; and I do hereby declare thefollowing to be a full, clear, and exact description of the invention,such as will enable others skilled inl the art to which it appertains tomake and use the same.

This invention relatesl to improvements in car couplings, but moreparticularly to couplings of the Janney type.

The primary object of the invention is to provide improved means forsecuring the tailpiece or inner arm of the knuckle in the recessedcoupler head when the cars are coupled together.

The invention will first be described with reference to the accompanyingdrawings, which form a part of this specification, and then pointed inthe claims at the end of the description.

In the drawings, Figure 1 represents a horizontal section of the couplerhead, with the lock and knuckle in plan view; and Fig. 2 is a verticalsectional Side elevation of the same.

Similar letters of reference denote similar parts. v i

A, denotes the coupler head having the usual shank A', and B, theknuckle which latter may be of the form shown or any preferredconstruction. As shown it consists of an angular orelbow-shaped piece orcasting having an outer portion or a'rm b, and an inner portion b',extending at an angle to each other, and pivoted at the angle to oneside of the coupler head by means of a suitable pivot pin C. The outerportion b, of the knuckle may be bifurcated and perforated, as shown,

to adapt the coupling to be used in coupling cars by means of anordinary link and pin. The inner portion or tail-piece b', is adapted tooccupy a recess in the coupler head when in its normal position with thecars coupled together, and to be locked in such position by means of thelooking device D, so as to control the position of the main or outerportion b, of the knuckle.

The'lock D, preferably consists of a block of metal occupying arecess-in the coupler head or shank extending rearwardly of the knuckleand its rear end may rest upon inclines ct, a., if desired, at eitherside of the re- Hcess in which the block moves, but`such inclines may beomitted. The f unction of these inclines is to guide the rear end orheel of the block and prevent the latter from tipping instead of movingbackward and upward when the block is lifted to release the knuckle.vThe front end of the block D, may be beveled or inclined, as shown, forengagement by the` curved or beveled portion b', of the knuckle, sq thatwhen the latter is turned from the position shown in dotted lines inFig. 1, toward the position shown in full lines the tailpiece willengage the block and move the same rearward and upward until thetailpiece has passed the block, whereuponthe latter will move by gravityand lock the knuckle in the desired position. For the purpose ofunlocking the knuckle when it is desired to uncouple the cars, Iprovidean eccentric disk or cam E,.over and upon which the block rests; thedisk being pivoted at one side of its center to suitable ears or lugsdepending from the under sidev of the coupler head or shank, and workingin a slot which extends longitudinally of the coupler head. The block ispreferably recessed on its under sideto fit over the periphery of thedisk, as shown, and it normally rests upon the bottom of the recess inthe couplerhead with the major portion of the Vdisk below the bottom ofthe coupler head or shank, so that when the disk is turned upon itseccentric pivot e, it Will cause the block to move upward and backwardinto the recess of the shank, to the position shown in dotted lines inFig. 2, so as to disengage the knuckle. This elevation of the disk andblock may be accomplished by means of a chain F, passing through theblock or a groove therein at its front end, and connected to the disksome distance below the block and the pivot of the disk; the oppositeend of the chain or other flexible connection extending up through anOpening in the top of the drawhead in convenient position to be reachedwhen it is desired to unlock the coupling.

IOO

nect With an arm of the knuckle projecting from the pivot C, oppositethe portion b, as shown, or With a lever or plate pivoted to the couplerhead and engaging said knuckle, as shown in the patent to J. S. Scott,No. 511,27 9, dated December 19, 1893, in order that When the chain F ispulled the lock-block will first be lifted so as to free the knuckle andafterward the knuckle itself will be turned npon its pivot and thrownopen.

It will be seen that by the described construction I produce a verysimple, efficient, durable and inexpensive lock, Whereby the knuekle iseifectively Secured in the desired position and may readily be unlockedwhen it is desired to nncouple the cars.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent of the United States, is*

1. The combination With a coupler-head provided with a recess and aknuckle pivotally connected thereto, of a locking deviee comprising aneccentrically pivoted oscillating disk or ca1n,a1ock-bloek working in arecess over the disk, and means for actuating the disk so as to impartan upward and backward movement to the block, substantially asdescribed.

2. The combination with the recessed coupler-head provided With apivoted angular knuckle having a portion capable of swinging into andout of said recess, of a lock-block and an eccentric or cam underneathsaid block, and means for oscillating the eccentric so as to impart arearward and upward movement to the block and thereby disengage theknuckle, substantially as described.

3. The combination with a recessed coupler-head provided with a pivotedangular knuckle having a portion capable of Swinging into and out ofsaid recess, of a lock-b1ock recessed on its under side, aneccentrically pivoted disk underneath said block and cngaging the recessthcrein, a iiexible device or chain extending from the disk past saidblock and out through an Opening in the top of the kdraW-head, andinclines for guiding the rear end or heel of the block so as to maintainthe same in a substantially horizontal position, substantially asdescribed.

In testimony whereof I affix m y Signature in presence ot' twowitnesses.

BENJAMIN MORRIS WII'PLOCK.

W'itnesses:

N. B. THURsToN, F. A. RAMSAY.

